<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <!-- import CSS -->
    <link rel="stylesheet" href="https://cdn.staticfile.org/element-ui/2.15.9/theme-chalk/index.css">
</head>
<body>
<div id="app">
    <div>
        <el-menu style="width: 200px">
            <el-submenu index="1">
                <template slot="title">
                    <i class="el-icon-location"></i>
                    <span>导航一</span>
                </template>
                <el-menu-item index="1-1">方案1</el-menu-item>
                <el-menu-item index="1-2">方案2</el-menu-item>
                <el-menu-item index="1-3">方案3</el-menu-item>
            </el-submenu>
            <el-submenu index="2">
                <template slot="title">
                    <i class="el-icon-location"></i>
                    <span>导航二</span>
                </template>
                <el-menu-item index="2-1">方案1</el-menu-item>
                <el-menu-item index="2-2">方案2</el-menu-item>
                <el-menu-item index="2-3">方案3</el-menu-item>
            </el-submenu>
        </el-menu>
    </div>
</div>
</body>
<!-- import Vue before Element -->
<script src="https://cdn.staticfile.org/vue/2.6.14/vue.min.js"></script>
<!-- import JavaScript -->
<script src="https://cdn.staticfile.org/element-ui/2.15.9/index.min.js"></script>
<script>
    let v = new Vue({
        el: '#app',
        data: function() {
            return {

            }
        },
        methods: {

        },
    })
</script>
</html>